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Finding the Fourth Proportional to 79,179.39, 118,780.67 and 23,012.20

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Solution

The fourth proportional to 79,179.39, 118,780.67 and 23,012.20 is: 34,521.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,179.39 : 118,780.67 = 23,012.20 : x
  2. Step 2: Convert to fraction form
    79,179.39/118,780.67 = 23,012.20/x
  3. Step 3: Cross multiply
    79,179.39x = 118,780.67 × 23,012.20
  4. Step 4: Simplify right side
    79,179.39x = 2,733,404,294.75
  5. Step 5: Solve for x
    x = 2,733,404,294.75/79,179.39
  6. Step 6: Final answer
    x = 34,521.67

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.